Electric recorder.



J. L. ZANDER. ELECTRIC RECORDER. APPLIGATION FILED JAN.17,1914. 1,104,949. Patented July 28,191 L 4 SHEETS-SHEET 1.

W 1420mm J. L. ZANDER.

ELECTRIC RECORDER. 'APPLIGATION FILED JAN.17,1914. 1,1 04,949. Q Patented July 28, 19M

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BLEOFRIG RECORDER.

APPLICATION FILED JAN.17,1914, 1,104,949.

. Patented July 28, 1914,

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ELECTRIC RECORDER.

AIPLIGATION FILED JAN.17.1914.

Patented July .28, 191%.

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nucnl'o't I cZSZanZ. Zauier UNITED STATES PATENT o FIo zromv L. zaivnnn, or IRVINGTON, NEW JERSEY, assr'oivoit To CHARLES "o. 'ssumm,

- or mvmsron, NEW JERSEY.

ELECTRIC sncommn.

1,104,949. I Original application-tiled November 7,

lication.

My invention relates to improvements in electric recorders, the object of theinvention being to provide an improved mechanism which prints upon. a moving chart a plurality of different characters, each character serving to measure a, separate electric circuit, whereby the instrument records the measure in voltage or temperature in con- 11cction with a plurality of thermmcouples.

Aturther object istoprovidc, in connection with a galvanometer, mechanical means for printing upon a moving chart a plurality of (litierent characters, and rovide improved mechanical means for opening and closing the electric circuits, whereby each circuit is closed in regular order and the ci'iaracter representing each circuit is printed upon the chart when its circuit. is closed, and the position ot'the printing device controlled by the galvanometer.

A further oh ect 15 to provide a galvanometer indicator. needle with an improved construction of pr nting device which consists of aflplurality of spring-held characters which are moved into printing relationship with a chart in accordance with the pressure on the printing device, and said characters singly and together operating to print different characters on the chart.

. 7 further object is to providein combination with my improved printing device, improved mechanical meansfor iring the printing device, for opening an closing electric circuits, and improved means for exerting pressure on the printing device in accordance with the circuit which is closed so that at each closure of the same circuit,

the same character will be printed on the chart.

This application is a division of my original application for patent on electric recordcrs, filed. November 7, 1912, and given Serial No. 7%,922. In the original application .1 have elected to cover my particular printing device, and this divisional ap- Specification of Letters Patent.

- PatentedJuly 28,1914.

plication, I have elected tocover the inking mechanism in its broad sense, in combination with the cooperating elements of the recorder.

With these and other oo ect's in view, the invention consists in certain 'novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings: Figure 1 is a perspective view illustrating my improvements. Fig. 2 is a view in side elevation on anenlarged scale illustrating my improved printing device. Figs. 3, 4, and 5 are bottom plan views on an enlarged scale of, the printing device showing the same in its three difi'erent positions to form its three different characters. Fig. 6 is a View in cross section through the' casing showing my improved mechanism in plan. is a view in vertical section through the easing illustrating the mechanism in end elevation.. Fig. 8 is a view in section on the line 8-8 of Fig. 6. Fig. 9 is a view in section on the line 9-9 of Fig. 6. Fig. 10 is a fragmentary view on an enlarged scale illustrating the arrangement of teeth cont-rolling the printing device and the ink pad-therefor;

Fig. 11 is a fragmentary perspective view illustrating one end of the chart car in-g drum. Fig. 12 is a perspective view 0 one of the electric contacts, 'and Fig. 13, is an electric diagram illustrating my improve ments.

70 represents a casing having a transpar' cnt' hinged door 71 normally secured in closed position by a lock 72, and in said casing a metallic base plate 4 is supported upon strips 5 secured to the sides of the casing. This base supports a galvanometer 6 having "an oscillating indicating needle 7 which Fig. 7

oscillates to measure voltage or the tempera.-

tures of thermocouples, and on the free end of this indicating needle 7 I provide an improved printing device 8. I A convenient method of attaching the printing'devioe is to construct the pointer in the form of a tube and project the restrictedend 9 of the printing device into the same. This printing def vice is adapted to printupon a moving chat-ft -10 which passes .over a cylingrical .druni 11g and is held firmly upon the ruin iiiiiis,

of rolls'lQ connected to spring armslil fixed to the posts 14 which support the drum. The

uniformly fed from a supply roll 16 supported by a rod 17 in hangers l8 ependent from base plate t.

The drum. as above stated, is iupported by the posts 14;, and one trnnnion'ar stub l": of the drum projects beyond the post, and has fixed thereto a pinion 2t: which meshes with a gear 21 fixed to a spring case 22. A second spring case has a large gear 2% thereon. and the gears 21 and 24 drive a train of gearing 26. This train of gearing is supported in a frame 31 and movement of the train of gearing is controlled bv the ordinary balance wheel 27. The train of gearing drives a shaft 28. upon the outer end of which three wheels are secured. and on the inner end of said shaft. a tootl'zed wheel 29 is secured. The three-wheels 30 control the opening and closing of the electric circuits and for convenience of descrio tion. and to distinguish them from other wheels. they shall be hereinafter termed circuit closing wheels. On one side of the wheel 29. a toothed. ring 32 is secured and this toothed ring controls the movement, of an inking pad 33. The inking pad is curved in the arc of a circle concentric with the pivot point of indicating needle 7. and at its ends is connected to pivoted hangers 34, and normally hangs by gravity out of the path of movement of the printing device 8. A lever 35 is fulcrnmed between its ends on the frame 31. and at one end bears against a finger36 on one of the hangers 34, while the opposite end of this lever lies in the path of movement of the teeth on ring Thisring turns in a direction to bring the beveled face of the teeth against the end of lever 35. and when the lever engaged by one of the teeth 32. the lever 35 is operated to swing the inking pad into the path of movement of the/printing device which will be hereinafter described.

The printing device is normallv elevated hv reason. of the inherent elasticitv in the needle 7. and is pressed downwardlv bv a U-shaped bail 37 pivotally supported at its ends in a frame 38 secured to base plate 4..

device. it will be engaged at the same. point bv the bail. This bail. at one side. is provided with a rearwardly projecting crank arm 40, and said arm 40 is connccted bv a three of the type 0 link 41 with a lever 42. This lever 4:2 21-: fnlcrnmed near for .vard end. in the tram;- 38, and is provided it. ew-three rear end with adjustmme weight 43 t counterbalance the weight of the bail. hem relieving the clock mesh. of the wei of the bail. The :torwa' shorter d lei-er 4-2 formed with e tootl engaged by the teeth on wheel 29. and 1.1; teeth are of a peculiar arrangementinn";- trated on an enlarged scale in Fig: i=3. ln other words, the circular ies of teeth are inthe form of ratchet lc and are ranged in a series of thr e, varying in height. hence the. wheel prm' ded with a circular series of teeth. everv third being" alike. but arranged in sets of three. first tooth 45 being the lowest. the tooth 40 higher. and the next toot-h th: highest and beginning again with a tooth 515 so on around the pcriph: the wheel. This ditl'erent depth of ted the pressure upon the printing dcvi: and this variation in pressure chu s t w printing device to form on tie c di'lierent characters.

The printing device dcomorises three angular spring members 4-1 49. and fill rcspectivelv. all integral at one end or together where the v ioin with the re d -l end 9 to; be projected into the tubular '0- "lo '7. but at the r :lrc ends. the said. em are apart and S71 J 4.8 normallv proil' an appreciable d' ctancc below the end spring 4-9. and the latter normallvproic r an appreciable distance below the end of spring 50. The end of'sprine' 48 constitnte1": a straight type 51. (in the end of sprinsr 4 2?. a curved tvpe 52 is provided. and 1 som what ditl'erentl curved type 53 is provi on the end of spring 50. 'l hcn onl'v smticient pressure is applied to the nrintinci device to bring the tvpe 51 into contact with the chart. a single bar will prir' the chart which will resemble the 1. Whcn a greater pressnre as for example. when. one of the teeth operating the nressnre device. not onl, 51 will he moved into contact. with the cha but also tvpe 52.. and ov re: son of the to that the springs all ioined at one ooi the downward movement. of the snrlnegswilil cause them to come-together their nrint "inn'fend. so that a (diameter somewhatrcsemhling the numeral 2 will be printed 'on the chart; lVlien the maximum 'oressn'n'a is applied. as for example. when the tooth 47' is in operative relation. the printing device will he forced downward so that all and 53 will come together and print on the charta character resembling the numeral 3 The three different positions of the printing device inits printing relationship to the chart are indicated in plan in Figs. 3,

mosses 1, and 5, and the particular character formed iscontrolled altogether by the downward movement of bail 37, this movement being controlled by the teeth d5, 46, and d7 as above explained. The circuit closing wheels 30 are provided around. their peripheries with radially projecting pins 54, each wheel alinement.

having a likenumber of pins, but the pins of the respective wheels having a lead over each other, so that none of the pins are in On the base 4, three approximately U-shaped spring contacts 55, 56, and 57 are located and are secured to a stri of insulation 58 which insulates them fir om each other and from the base. These contacts are connected by electric wires 59, 60,.

and 61 with binding posts 62, 63, and 64.- respectively. on the outside of the ca ing. It is to be understood that the three contacts 55, 56, and 57 are in the path. of movement respectively of the three sets of pins 54 on the three wheels 30, so that the circuits electric diagram in which my improvements are shown in connection with three thermocouples 1, 2, and 3, the positive pole of the respective couples. being connected with the contacts 55, 56, and 57 respectively, and the negative pole of all of the couples connected with the negative pole ofthe galvanometer 6, and the positive pole of said galvanometer, electrically connected by means of the wire 65, and through the. base 4 with the shaft 28 and the three wheels 30 thereon.

The chart 10 above referredto comprises a plurality of longitudinal lines 68 crossed by curved lines 69. These lines are curved so that regardless of the swinging-move ment of the indicating needle 7, the printing device will print properly between the lines. The operation is as follows: The inking pad 33 is normally out of the path of niovement of the printing device 8, and we will assumethat the wheels 30 are in a position 'to move one of the pins into engagement with contact 55, which controls the circuit to the thermo-couple 1. As soon as this contact is made, the electric circuit is closed between the thermocouple 1 and the galvanometer, so that the needle 7 of the galvanometer will swing laterally to measure the current and will stop at such lateral position. At this time, one of the teeth 45 will, through the medium of the mechanism above described, cause the ball 37 to move downwardly and exert a pressure upon the printing device 8. but this pressure will be only suificient to bring type 51 into contact with the chart 10, it being understood that the chart is slowly or continuously moving,

hence upon the chart the type 51 will record the numeral 1 and indicate upon the chart the temperature or voltage of the thermo- 'couple 1. As soon as this is done, the circuit to the thermo-couple is brokenas the pin passes contact 55. Next, a pin on another of the wheels 30 will engage contact 56 and close thecircuit through thermo-couple 2. As before, the needle 7 will'swing laterally to measure the current and as before the bail 37 will move downwardly, but this time, by reason of: the fact that the movement of the bail is controlled by a tooth 46, the print device will receive a downward pressure sufficient to move type 52 against the chart as well as-type 51, andas these two types come together, they will print upon the chart, the numeral 2 as indicated in plan in- Fig..4. This circuit is then broken and one of the pins next engages contact 57, so that the electric circuit is closed through thermocouple 3. As before, needle 7 .will swing laterally to measure the current, and bail 37 will move downwardly, but this time a tooth 47 .controls the downward pressure and givesto the printing device its maximum movement, which brings all three of the type 51,52, and 53 together as indicated in Fig. 5, and upon the chart the numeral 3 will be printed.

The operation above described is repeated again and again at regular intervals. so that an examination of the chart at any time will show exactly the fiuctuationsin the different circuits. At regular intervals, the teeth on ring r 32 will cause the ink pad 33 toswing outwardly into the path of movement of the printing device as above explained, so that the type 51 and 52 wlll receive the ink from the pad when pressed downwardly by the bail 2.7. At such time, of course the printing device will not print upon the chart, but

the teeth are so arranged that the inking of the type is uniformly accomplished so that there is no appreciable skip in the recording of any particular circuit.

It will be noted that by the arrangement of teeth on ring 32 with reference to teeth 45, 46, and 47, the inking pad 33 is moved under the printing device 8 at every fourth depression of the latter. This prevents the recording of each circuit every third time, so that a skip will occur in each column every third time, but such skips are not noticeable because of the close proximity of the characters. \Vhile I have described my improved printing device as forming numerals 1, 2,.

and 3, it is of course to be understood that other characters might be so formed, and

the recorder may be adapted for various uses, but will accurately record the measurements in rnrious circuitsa While I have referred to the means for marking the record as a printing device, the same in its broadest sense is a pen supplied by lull from the pad, and hence in the claims .l have used this term pen -in the broadest sense to cover m marking or printing device supplied by ink to mark the record.

Various slight changes might be made in the general form and arrangement of parts described without departing from my invention, and hence-I do not limit myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The combination in a graphic recorder of a chartsuppcrting member, a movably mounted ink pad,'a pen mounied to normally be out of engagement wiih the-chart on said member, mechanism for periodically inter posing the inking pad between the chart and the pen, with a device forperiodically actuating the pen to cause it toengage the chart at cc lain times and i0 cause it to engage the ink pad at other times,

2. Thecombination in a graphic recorder of 11 chart supporting roller, mechanism for turning said roller, 11 movably supported. ink pad adjacent the roller, a pen mounted to form a record on a chart upon the roller, mcclmni:--:m for periodically moving the ink pad into the line of movement of the pen, and a device for moving the pen alternately into engagement with the chart and With the ink pad.

2'). The combination in a graphic recorder adapted to engage and nepree of. :1 chart supporting structure, a pen mounted to form a record on a, chart upon said structure, an ink carrier, means for periodicrlly interposing said carrier limtween the pen and the chart, and means for per-i odically moving the pen into an operative position, the same consistinq of n l'nernber operative on said pen, and a second menib for controlling the operation of the first member.

42. T he combination in a graphic records-1i oi a chart supp'ortin member, a pen, men for periodically causing the'pen to :iorin. record on a chart carried by said meinh the same including ratchet wheel teeth of different heights, and an member for periodically supplying the pen.

5. The combination with a n'iirahle rccord.,e laterally swinging nen,a pivoted bail s the pen at any position of its lateral movemcri', a chart carrier below the pen, on inking we, and means for periodically moving the inking pad into position below the pen, substantially as described.

(3. in an apparatus of the character de scribed, a recording device, means or riodicall cm sing said device to ifcrni s ord, said means comprising a ratchetivh having; teetl of different heights L mechanism including av i'novahle .inl iin,.. member and a second ratchet woecl for e riodically causing said inking member lo supply ink to the recording; device.

In i'csiinwny ihereo'f l have si name to this specification in the pi two subscribing witnesses.

7 7 having: inlrhu: inlr to Witnesses EUGENE h'iUliSC'i-i, 3011i fil'rncznn. 

